Process for producing coats.



tinrrnn srawnntr orrron.

FREDERIC AUGUSTUS ANTONI, OF COLOGNE, GERMANY, ASSIGNOR TO THE FIRM OF J. WAHLEN, OF COLOGNE-EHBENFELD, GERMANY.

No Drawing.

To all whom it may concern;

Be it known that I, FREDERIC AUcUs'rUs AN'roNI, merchant, a subject of the German Emperor, and resident of 49 Briisselerstrasse, Cologne on the Rhine, Germany, have invented certain new and useful Improvements in and Relating to Processes for Producing Coats, of which the following is a specification.

At all times it was found necessary to provide special. covers or coats for such objects made of metal, wood and the like, which are located or employed out of doors and which are often handled and touched by men, as, for instance, for walking and umbrella-sticks made of metallic pipes, for instruments, for the handles of umbrellas, instruments and tools, for the latches of the doors of vehicles of all kinds, especially of tram and railway cars, further for the handles, hold-fasts and railings of said cars, for the hand-rails of stairs, platforms, and the like. The purpose of this was to obviate, on the one hand, as far as possible the injurious influence of weather effecting corrosion, oxidation or rottenness, and to prevent, on the other hand, said objects from being damaged and from becoming tarnished and spotted, especially by the perspiration when being touched with the hands, and further, with objects made of metal, for facilitating and rendering it less disagreeable to grasp them with the hands when in a cold or warm condition. Hitherto for this purpose the objects were generally varnished, or covers made of leather, fabrics, or the like, were employed. The varnish coat, however, not being sufficiently elastic, easily cracks and becomes in time full of fissures. Being worn out by the frequent handling, and feeling in winter comparatively cold and in summer hot, it gave a disagreeable feeling to the touch, although its heat conducting power is less, than that of metal, but not yet sufficiently low. The covers of leather and fabrics, on the other hand, as regards their elasticity and heat conducting power, answered all requirements, but necessitated a seam and in con sequence thereof looked uneven and unhandsome, especially with curved objects, and, with straight objects of a circular section, usually did not hold firmly, but were liable to slide and turn. Moreover they did not offer a suflicient protection for the Specification of Letters Patent.

Application filed March 29, 1909.

PROCESS FOR PRODUCING COATS.

Patented July 2, 1912.

Serial No. 486,595.

covered objects against the action of moisture, because the latter could, in the case of leather covers, penetrate at least at the seam and with the fabric covers could penetrate the pores, so that in time the covers themselves gradually rotted. The covers are also not at all fireproof and would easily burn. For coating or covering metallic surfaces it has also previously been proposed to apply one or more layers of granulated cork in combination with a specially prepared cementitious composition, or in certain cases with shellac, oil or resin, and to apply a layer of fibrous matting, the cementitious composition having the purpose to fill up the interstices of the granular cork or of the fibrous matting, whereas in the case of the present invention this filling up of the interstices and recesses is done by the filling up material itself, as each subsequent coating is applied in a more finely ground state.

The present process now relates to the product-ion of coats on objects of the said kind, by employing elastic filling up ma terial, such as finely ground cork, wood, vegetable or asbestos fibers, or the like, in combination with a suitable glutinous material, such as glue, solutions of lacquer or oil and the like.

It consists mainly in the following: To the object to be coated first a coating of an agglutinant, then a layer of filling up ma terial is laid on and allowed to dry, after which a further coating of an agglutinant and a layer of filling up material is applied, and again allowed to dry. This process is repeated as often as desirable or necessary, and finally a last coating of an agglutinant is applied forming the outer or upper coating and covering layer.

The above process offers the advantage of each subsequent layer of the filling up material being applied in a finer state than the preceding one, so that any recesses and spaces in the latter may be filled up and closed with the new layer of filling up material by the now applied finer parts of the filling up material, firmly adhering to these by the layer of the agglutinant previously applied. By this the whole coat becomes extremely close and solid, without materially increasing its thickness which of course is an important factor in the case of canes and sticks, handles, tubes, and the like, in order not to render them clumsy and" of unhandsome appearance.

The elastic fillingup material which is to be applied in the present process, such as cork or wood meal (saw-dust), vegetable or asbestos fibers, being very finely ground,

may be subjected to a preceding special treatment by being soaked with a hot solution of lacquer, varnish, or oil, whereby filling up material is rendered impossible,

without, however, incurring any loss of elasticity of the material, which is an essential point.

The filling up material, when prepared as above described, may then be applied in any suitable manner in combination with glue, gelatin, or the like, serving as an agglutinant, this agglutinant, being tanned by any of the known processes, as for instance by treating them with formaldehyde, and hardened in this manner. Over the coating thus formed consisting of filling up material with hardened glue as agglutinant, a coating of a suitable solvent is finally applied, in order to make it perfectly indifferent to moisture.

A method of carrying out the hereinbefore described process is explained in the following, serving only as an example: Finely ground cork being stirred up, is well soaked with hot lacquer or oil of suitable quality, and then allowed to dry. The surface of the object to be provided with the coat, as for instance of an iron handle for railway-cars, is first coatedwith a solution of glue in water, either by spreading same over, or by soaking, and then the ground cork, prepared as aforesaid, is strewed upon.

After this, the glue contained in the thus produced layer is hardened by soaking the whole in a solution of formaldehyde. After having allowed this coating to 'dry, the whole process is repeated one or several times according to the thickness of the total coat desired. After this it is finally well coated with lacquer and then allowed to dry,

whereupon it can be polished.

If it is a matter of coatlng such objects quired, as for instance against shocks, blows,

or the like, one or more sheets or layers of suitable fabric, such as cotton-, hemp-cloth, or the like, may be laid in between the different layers.

I therefore claim as my invention and desire to secure by Letters Patent:

1. The herein described improved process for producing on objects made of metal, wood and the like, an elastic, durable, noncracking, water-proof coating consisting in applying roundabout the surface of the object to be coated first an agglutinant, then a finely ground elastic solid filling material, then drying, then applying once more an agglutinant, then again the elastic solid filling material in a more finely ground state than formerly, then again drying, this operation 'being repeated as often as desired, said materials forming a closed coating or layer roundabout the surface of the object, the elastic solid filling material being ap plied in a more finely ground state for each subsequent layer, and applying finally only an agglutinent and then drying.

2. In the herein described improved process for producing on objects made of metal, wood and the like, an elastic, durable, noncracking, water-proof coatin consisting in applying alternately an agg utinant and a finely ground elastic solid filling material roundabout the surface of the object, each forming a coating or layer, beginning and ending with a coating of the agglutinant, and each subsequent layerof the filling material being applied in a finer ground state, the elastic filling material, being first -treated by soaking or impregnating with a Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

